U.S. patent application number 17/507110 was filed with the patent office on 2022-02-10 for deodorant-containing working fluid, method for manufacturing deodorizing product, deodorizing filter medium, deodorizing filter unit, and deodorizing device.
This patent application is currently assigned to TOAGOSEI CO., LTD.. The applicant listed for this patent is TOAGOSEI CO., LTD.. Invention is credited to Yuuki UESUGI, Yoshinao YAMADA.
Application Number | 20220040353 17/507110 |
Document ID | / |
Family ID | |
Filed Date | 2022-02-10 |
United States Patent
Application |
20220040353 |
Kind Code |
A1 |
UESUGI; Yuuki ; et
al. |
February 10, 2022 |
DEODORANT-CONTAINING WORKING FLUID, METHOD FOR MANUFACTURING
DEODORIZING PRODUCT, DEODORIZING FILTER MEDIUM, DEODORIZING FILTER
UNIT, AND DEODORIZING DEVICE
Abstract
The present deodorant-containing processing liquid includes an
acid salt of an aminoguanidine, an inorganic carrier capable of
carrying the acid salt of the aminoguanidine, a dispersant, and
water, a content of the acid salt of the aminoguanidine is 15 parts
or more by mass based on 100 parts by mass of a content of the
inorganic carrier, and the dispersant is at least one selected from
a group consisting of an anionic surfactant and a nonionic
surfactant.
Inventors: |
UESUGI; Yuuki; (Nagoya-shi,
JP) ; YAMADA; Yoshinao; (Nagoya-shi, JP) |
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Applicant: |
Name |
City |
State |
Country |
Type |
TOAGOSEI CO., LTD. |
Tokyo |
|
JP |
|
|
Assignee: |
TOAGOSEI CO., LTD.
Tokyo
JP
|
Appl. No.: |
17/507110 |
Filed: |
October 21, 2021 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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16763830 |
May 13, 2020 |
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PCT/JP2018/040990 |
Nov 5, 2018 |
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17507110 |
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International
Class: |
A61L 9/014 20060101
A61L009/014; A61L 9/16 20060101 A61L009/16; B01D 53/02 20060101
B01D053/02; B01J 20/22 20060101 B01J020/22; B01J 20/28 20060101
B01J020/28; B01J 20/32 20060101 B01J020/32 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 16, 2017 |
JP |
2017-221313 |
Claims
1. A deodorant-containing processing liquid, comprising an acid
salt of an aminoguanidine, an inorganic carrier capable of carrying
the acid salt of the aminoguanidine, a dispersant, and a dispersion
medium, wherein a content of the acid salt of the aminoguanidine is
15 parts or more by mass based on 100 parts by mass of a content of
the inorganic carrier; and the dispersant is at least one selected
from the group consisting of an anionic surfactant and a nonionic
surfactant.
2. The deodorant-containing processing liquid according to claim 1,
wherein the acid salt of the aminoguanidine is carried by the
inorganic carrier.
3. The deodorant-containing processing liquid according to claim 1,
wherein a content ratio of the inorganic carrier is in a range of
0.1% to 50% by mass based on the deodorant-containing processing
liquid.
4-9. (canceled)
10. The deodorant-containing processing liquid according to claim
2, wherein a content ratio of the inorganic carrier is in a range
of 0.1% to 50% by mass based on the deodorant-containing processing
liquid.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a divisional of U.S. application Ser.
No. 16/763,830, filed on May 13, 2020, which is a national stage
patent application of international patent application
PCT/JP2018/040990, filed on Nov. 5, 2018, the text of which is
incorporated by reference, and claims foreign priority to Japanese
Patent Application No. 2017-221313, filed on Nov. 16, 2017, the
entire content of which is incorporated herein by reference.
FIELD OF THE INVENTION
[0002] The present invention relates to a deodorant-containing
processing liquid, a method for producing a deodorizing product, a
deodorizing filter medium, a deodorizing filter unit, and a
deodorizing apparatus.
BACKGROUND ART
[0003] Depending on a living environment or a working environment,
various gaseous pollutants such as bad odors and harmful gases are
present in air, and therefore, attention has been paid to the
removal of these gaseous pollutants to establish a comfortable
environment. For example, aldehyde-based gases are contained in
various odors such as cigarette smoke, body odor (e.g., sweat odor,
breath odor), pet odor, mold odor, paint odor, and printing odor,
and the influences of the aldehyde-based gases on human health have
been pointed out. In recent years, deodorizing filter media,
deodorizing filters, and the like have been proposed to clarify air
containing aldehyde-based gases in rooms, cars, etc.
[0004] As conventional deodorizing filter media for aldehyde-based
gases, the following products are known which are obtained by
adhering a chemical adsorption-type deodorant to nonwoven fabrics,
paper, and the like. In the following literatures, the term
"deodorizing filter (or deodorant filter)" is used instead of the
deodorizing filter medium.
[0005] Patent Literature 1 discloses a deodorizing filter
comprising a deodorant containing a catalyst obtained by allowing
manganese oxide to carry a rutherium compound or a phosphoric acid
salt compound.
[0006] Patent Literature 2 discloses a deodorizing filter
containing a particle carrying a hydroxyamine compound such as
2-amino-2-hydroxymethyl-1,3-propanediol and a porous polymer
particle obtained by copolymerizing monomer components including a
cross-linkable vinyl monomer and a vinyl monomer having a
nitrogen-containing aromatic ring.
[0007] Patent Literature 3 discloses a deodorizing filter obtained
by allowing an activated carbon-containing paper to carry a cyclic
saturated amine and a basic compound.
[0008] When a deodorizing product is produced, a deodorant is used
according to its properties. In general, a method is used in which
a dispersion liquid containing a deodorant, an adhesive, and a
medium, that is, a deodorant-containing processing liquid is
applied onto a surface of a base and a resulting coating film is
dried. The deodorant-containing processing liquid conventionally
contains a dispersant from a viewpoint of the stability of the
liquid. Patent Literature 4 discloses a deodorant-dispersed liquid
containing a deodorant obtained by allowing aluminum silicate to
carry an acid salt of aminoguanidine, a dispersant, a preservative,
an antifoaming agent, a thickener, a binder, and water, and the
deodorant-dispersed liquid is a suspension liquid
(deodorant-containing processing liquid) containing, as the
dispersant, an alkylammonium salt of a block copolymer containing a
phosphoric acid group (amphoteric surfactant) or polyoxyethylene
nonylphenyl ether (nonionic surfactant). This suspension liquid is
used to produce a deodorizing fiber or a deodorizing carpet.
PRIOR ART LITERATURE
Patent Literature
[0009] Patent Literature 1: JP-A 2008-104845
[0010] Patent Literature 2: JP-A 2012-120637
[0011] Patent literature 3: JP-A 2016-154640
[0012] Patent Literature 4: WO 2007/88879
SUMMARY OF THE INVENTION
Problems that the Invention is to Solve
[0013] Deodorizing performance of a deodorizing product obtained by
impregnating a base with a deodorant generally depends on an
impregnation amount of the deodorant. Therefore, when a deodorizing
product is produced using a deodorant-containing processing liquid,
it is necessary to use a deodorant-containing processing liquid
containing a deodorant at high concentration or to repeatedly
perform application and drying of a deodorant-containing processing
liquid containing a deodorant at low concentration in order to
impregnate a base with a larger amount of the deodorant. However,
when a deodorant-containing processing liquid containing a
deodorant at high concentration is used, defects are caused, such
as generation of an aggregate and thickening of the liquid. On the
other hand, the latter approach in which a deodorant-containing
processing liquid containing a deodorant at low concentration is
repeatedly applied and dried is not advantageous in terms of
production costs.
Means for Solving the Problems
[0014] In light of the above problem of the prior art, the present
inventors have studied a deodorant-containing processing liquid for
producing a deodorizing product by impregnating a base with a
deodorant to complete the present invention. More specifically, the
present inventors have found that a deodorant-containing processing
liquid including an acid salt of aminoguanidine, an inorganic
carrier carrying the acid salt of aminoguanidine in a predetermined
amount or more with respect to an amount of the inorganic carrier,
at least one selected from an anionic surfactant and a nonionic
surfactant as a dispersant, and a dispersion medium has excellent
storage stability and can be used to provide a deodorizing product
that has high deodorizing performance.
[0015] The present invention is as follows.
1. A deodorant-containing processing liquid comprising an acid salt
of an aminoguanidine, an inorganic carrier capable of carrying the
acid salt of the aminoguanidine, a dispersant, and a dispersion
medium, characterized in that a content of the acid salt of the
aminoguanidine is 15 parts or more by mass based on 100 parts by
mass of a content of the inorganic carrier, and that the dispersant
is at least one selected from a group consisting of an anionic
surfactant and a nonionic surfactant. 2. The deodorant-containing
processing liquid according to 1 above, wherein the acid salt of
the aminoguanidine is carried by the inorganic carrier. 3. The
deodorant-containing processing liquid according to 1 or 2 above,
wherein a content ratio of the inorganic carrier is in a range from
0.1% to 50% by mass based on the deodorant-containing processing
liquid. 4. A method for producing a deodorizing product,
characterized by comprising the steps of: forming a coating film on
a surface of a base using the deodorant-containing processing
liquid according to any one of 1 to 3 above and the base; and
drying the coating film 5. A deodorizing filter medium comprising a
sheet-shaped base comprising a fiber and a deodorant-containing
part joined to a surface of the fiber, the deodorizing filter
medium having an air permeable from one surface side to other
surface side, characterized in that the deodorant-containing part
comprises an acid salt of an aminoguanidine, an inorganic carrier
carrying the acid salt of the aminoguanidine, an adhesive resin,
and a surfactant, that a content of the acid salt of the
aminoguanidine is 15 parts or more by mass based on 100 parts by
mass of a content of the inorganic carrier, and that the surfactant
is at least one selected from a group consisting of an anionic
surfactant and a nonionic surfactant. 6. The deodorizing filter
medium according to 5 above, wherein a content ratio of the acid
salt of the aminoguanidine is in a range from 1% to 50% by mass
based on the base. 7. The deodorizing filter medium according to 5
or 6 above, wherein an air permeability of the deodorizing filter
medium is in a range from 10 to 500 cm.sup.3/(cm.sup.2s). 8. A
deodorizing filter unit characterized by comprising the deodorizing
filter medium according to any one of 5 to 7 above and a carrying
member that carries the deodorizing filter medium. 9. A deodorizing
apparatus characterized by comprising the deodorizing filter medium
according to any one of 5 to 7 above.
Effects of the Invention
[0016] The deodorant-containing processing liquid according to an
embodiment of the present invention is excellent in stability, easy
to handle, and suitable for producing a deodorizing product for
aldehyde-based gases whose impregnation amount of a deodorant is
high.
[0017] The production method of a deodorizing product according to
the embodiment of the present invention makes it possible to
provide a deodorizing product for aldehyde-based gases which has
high deodorizing performance.
[0018] The deodorizing filter medium according to the embodiment of
the present invention has high deodorizing performance against
aldehyde-based gases. Therefore, the deodorizing filter unit and
the deodorizing apparatus having the deodorizing filter medium
according to the embodiment of the present invention also have high
deodorizing performance against aldehyde-based gases.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] FIG. 1 is a schematic diagram showing an example of the
cross-sectional structure of a deodorizing filter medium according
to an embodiment of the present invention; and
[0020] FIG. 2 is a schematic diagram for explaining an aeration
deodorant test for deodorizing filter medium in Examples.
EMBODIMENT FOR CARRYING OUT THE INVENTION
[0021] The deodorant-containing processing liquid according to an
embodiment of the present invention is a composition including an
acid salt of aminoguanidine, an inorganic carrier capable of
carrying the acid salt of aminoguanidine, an adhesive resin, a
dispersant, and water as a dispersion medium. The acid salt of
aminoguanidine and the inorganic carrier function as a deodorant
for aldehyde-based gases. The deodorant-containing processing
liquid according to the embodiment of the present invention, if
necessary, may further include other deodorant (described later)
that chemically adsorbs aldehyde-based gases or other odorous gases
and/or an additive.
[0022] The deodorant-containing processing liquid according to the
embodiment of the present invention is intended to produce a
deodorizing product by applying it onto a base having a
predetermined shape and then drying a resulting coating film so
that a deodorant containing the acid salt of aminoguanidine and the
inorganic carrier is adhered to the base with the adhesive resin.
It is to be noted that the term "aldehyde-based gases" used in the
embodiment of the present invention refers to gases derived from
compounds having a --CHO group. Specific examples thereof include
gases derived from formaldehyde, acetaldehyde, propanal, butanal,
nonenal, or the like.
[0023] The acid salt of aminoguanidine may be a hydrochloride, a
sulfate, a carbonate, a nitrate, or the like of a
monoaminoguanidine, a diaminoguanidine, or a triaminoguanidine.
[0024] Examples of the monoaminoguanidine salt include
aminoguanidine hydrochloride, aminoguanidine sulfate,
aminoguanidine bicarbonate, aminoguanidine nitrate, and the
like
[0025] Examples of the diaminoguanidine salt include
diaminoguanidine hydrochloride, diaminoguanidine sulfate,
diaminoguanidine nitrate, and the like
[0026] Examples of the triaminoguanidine salt include
diaminoguanidine hydrochloride, triaminoguanidine nitrate, and the
like.
[0027] The acid salt of aminoguanidine contained in the
deodorant-containing processing liquid of the present embodiment
may be only one type, or two or more types.
[0028] Aminoguanidine hydrochloride and aminoguanidine sulfate are
preferable as the acid salt of aminoguanidine.
[0029] The inorganic carrier is not particularly limited as long as
the inorganic carrier does not react with water and maintains its
properties in the deodorant-containing processing liquid. Examples
of a material constituting the inorganic carrier include a silicate
compound, a tetravalent metal phosphate compound, a zeolite, a
silica gel, and the like.
[0030] Among these, a silicate compound and a silica gel are
particularly preferable.
[0031] The silicate compound is preferably an aluminum silicate or
a magnesium silicate.
[0032] The aluminum silicate is preferably a compound represented
by the following general formula (1), and the magnesium silicate is
preferably a compound represented by the following general formula
(2).
Al.sub.2O.sub.3.mSiO.sub.2.nH.sub.2O (1)
(In the formula, m is an integer of 6 or more, and n is an integer
of 1 or more.)
MgO.qSiO.sub.2. nH.sub.2O (2)
(In the formula, q is an integer of 1 or more, and n is an integer
of 0.1 or more.)
[0033] In the general formula (1) representing the aluminum
silicate, m is preferably 6 to 50, and more preferably 8 to 15.
Additionally, n is preferably 1 to 20, and more preferably 3 to
15.
[0034] In the general formula (2) representing the magnesium
silicate, q is preferably 1 to 20, and more preferably 3 to 15.
Additionally, n is preferably 0.1 to 20, and more preferably 1 to
8.
[0035] The silicate compound is particularly preferably an aluminum
silicate.
[0036] Examples of the tetravalent metal phosphate compound include
zirconium phosphate, titanium phosphate, tin phosphate, and the
like. These compounds may either be crystalline or amorphous.
[0037] The zeolite may have a structure of type A, type X type Y,
type .alpha., type .beta., or ZSM-5. The zeolites of these types
may either be natural products or synthetic products.
[0038] The properties and size of the inorganic carrier are not
particularly limited. From a viewpoint of a deodorizing effect on
aldehyde-based gases, a BET specific surface area is preferably 10
m.sup.2/g or more, and more preferably 50 m.sup.2/g or more, and an
average particle diameter is preferably in a range from 0.01 to 50
.mu.m, and more preferably from 0.02 to 20 .mu.m. If the BET
specific surface area exceeds 2,000 m.sup.2/g, the pore diameter of
the inorganic carrier is smaller than the particle diameter of the
acid salt of aminoguanidine, and therefore it is difficult for the
inorganic carrier to carry the acid salt of aminoguanidine.
[0039] The deodorant-containing processing liquid according to the
embodiment of the present invention includes at least a complex
obtained by allowing the inorganic carrier to carry the acid salt
of aminoguanidine from a viewpoint of deodorizing performance of a
resulting deodorizing product.
[0040] From a viewpoint of deodorizing effect of the complex, a
content of the acid salt of aminoguanidine in the complex obtained
by allowing the inorganic carrier to carry the acid salt of
aminoguanidine is 15 pans or more by mass, preferably in a range
from 15 to 200 parts by mass, more preferably from 20 to 160 parts
by mass, and further preferably from 25 to 100 parts by mass based
on 100 parts by mass of the inorganic carrier. If the content of
the acid salt of aminoguanidine is less than 15 parts by mass
against the inorganic carrier, a sufficient deodorizing effect
cannot be obtained, in which case the base needs to be processed
two or more times by applying the deodorant-containing processing
liquid thereonto to obtain a desired deodorizing effect. On the
other hand, if the content of the acid salt of aminoguanidine
exceeds 200 parts by mass against the inorganic carrier, there is a
case where deodorizing efficiency is reduced because the amount of
aminoguanidine with respect to the surface area of the inorganic
carrier is excessively high.
[0041] Further, even when the complex is used in combination with a
deodorant for gases other than aldehyde-based gases, such as
sulfur-based gases, basic gases, and organic acid gases,
deodorizing performance against aldehyde-based gases can
sufficiently be delivered while deodorizing performance against
sulfur-based gases, basic gases, organic acid gases, or the like is
maintained.
[0042] From a viewpoint of deodorizing performance of a resulting
deodorizing product, a content of the inorganic carrier contained
in the deodorant-containing processing liquid of the embodiment of
the present invention is preferably in a range firm 0.1% to 50% by
mass, more preferably from 1% to 40% by mass, and further
preferably from 5% to 30% by mass based on the deodorant-containing
processing liquid. If the content of the inorganic carrier is less
than 0.1% by mass, deodorizing performance cannot sufficiently be
achieved, and therefore the base needs to be processed two or more
times to obtain a desired deodorizing effect. On the other band, if
the content of the inorganic carrier exceeds 50% by mass, there is
a case where the deodorant-containing processing liquid is not
suitable for processing due to its too high a viscosity or a
precipitate is formed due to the aggregation of the inorganic
carrier.
[0043] The complex may be obtained by a conventionally publicly
known method. For example, the complex may be obtained by a method
in which a solution (aqueous solution or alcohol solution) of the
acid salt of aminoguanidine is dropped or sprayed onto a powder of
the inorganic carrier with stirring, and then a medium is removed
by heating.
[0044] The adhesive resin is a component to adhere at least the
acid salt of aminoguanidine and the inorganic carrier to a base for
producing a deodorizing product. The adhesive resin contained in
the deodorant-containing processing liquid according to the
embodiment of the present invention may be only one type, or two or
more types.
[0045] The adhesive resin may either be a water-soluble resin or a
water-insoluble resin. Example thereof includes an ethylene-vinyl
acetate copolymer or a modified product thereof (e.g., an
acid-modified product), an ethylene-vinyl chloride copolymer or a
modified product thereof a vinyl chloride-vinyl acetate copolymer,
polyvinyl acetate, polyvinyl chloride, a modified olefin resin
(e.g., chlorinated polyolefin), a polyester resin, an acrylic
resin, a urethane resin or a modified product thereof a
styrene-butadiene copolymer, a styrene-isoprene copolymer, a
styrene-butadiene-styrene block copolymer, a
styrene-ethylene-butylene-styrene block copolymer, a
styrene-ethylene-propylene-styrene block copolymer, a hydrogenated
styrene-butadiene-styrene block copolymer, a hydrogenated
styrene-ethylene-butylene-styrene block copolymer, a hydrogenated
styrene-ethylene-propylene-styrene block copolymer, and the like.
Among these, an ethylene-vinyl acetate copolymer or a modified
product thereof (e.g., an acid-modified product), an ethylene-vinyl
chloride copolymer or a modified product, a vinyl chloride-vinyl
acetatecopolymer, a poly vinyl acetate, a poly vinyl chloride, a
modified polyolefin (e.g., chlorinated polyolefin), a polyester
resin, an acrylic resin, and a urethane resin or a modified product
thereof are preferable.
[0046] When the adhesive resin is a water-insoluble resin, the
adhesive resin may be in the form of particles, lines, or the like
in the deodorant-containing processing liquid according to the
embodiment of the present invention.
[0047] A content of the adhesive resin contained in the
deodorant-containing processing liquid according to the embodiment
of the present invention is preferably in a range from 10 to 300
parts by mass, more preferably from 15 to 200 parts by mass, and
further preferably from 20 to 150 parts by mass based on 100 parts
by mass of a total amount of the acid salt of aminoguanidine and
the inorganic carrier or a total amount of the acid salt of
aminoguanidine, the inorganic carrier, and other deodorant
(described later) that is optionally contained.
[0048] The dispersant is at least one selected from an anionic
surfactant and a nonionic surfactant, and imparts stability to the
deodorant-containing processing liquid according to the embodiment
of the present invention when, as described above, the content of
the acid salt of aminoguanidine is 15 parts or more by mass based
on 100 parts by mass of the inorganic carrier. The dispersant
contained in the deodorant-containing processing liquid according
to the embodiment of the present invention may be either one or
both of the anionic surfactant and the nonionic surfactant.
[0049] Examples of the anionic surfactant include a carboxylic
acid-based anionic surfactant, a sulfonic acid-based anionic
surfactant, a sulfuric acid-based anionic surfactant, a phosphoric
acid-based anionic surfactant, and the like. Among these, a
carboxylic acid-based anionic surfactant is preferable. The
carboxylic acid-based anionic surfactant contained in the
dispersant may be only one type, or two or more types.
[0050] Hereinafter, specific examples of the anionic surfactant
will be described, and the term "salt" refers to an alkali metal
salt (e.g., a lithium salt, a sodium salt, a potassium salt), an
alkaline earth metal salt (e.g., a magnesium salt, a calcium salt),
an ammonium salt, or an amine salt (e.g., a monoethanolamine salt,
a diethanolamine salt, a triethanolamine salt, a
monoisopropanolamine salt).
[0051] Examples of the carboxylic acid-based anionic surfactant
include a polycarboxylic acid salt, an aliphatic carboxylic acid
salt, an alkyl ether carboxylic acid salt, an alkenyl succinic acid
salt, an N-acylamino acid salt, an amide ether carboxylic acid
salt, an acyl lactic acid salt, and the like. Among these, a a
polycarboxylic acid salt is preferable.
[0052] Examples of the polycarboxylic acid salt include salts of
homopolymers or copolymers containing a structural unit derived
from acrylic acid, methacrylic acid, maleic acid, fumaric acid,
itaconic acid, maleic anhydride, and the like. Specifically, salts
of polyacrylic acid, polymethacrylic acid, polymaleic acid,
polymaleic anhydride, a maleic acid-isobutylene copolymer, a maleic
anhydride-isobutylene copolymer, a maleic acid-diisobutylene
copolymer, a maleic anhydride-diisobutylene copolymer, an acrylic
acid-itaconic acid copolymer, a methacrylic acid-itaconic acid
copolymer, a maleic acid-styrene copolymer, a maleic
anhydride-styrene copolymer, an acrylic acid-methacrylic acid
copolymer, an acrylic acid-acrylic acid methyl ester copolymer, an
acrylic acid-vinyl acetate copolymer, an acrylic acid-maleic acid
copolymer, an acrylic acid-maleic anhydride copolymer, and the
litre can be used.
[0053] Examples of the aliphatic carboxylic acid salt include an
aliphatic carboxylic acid salt containing an alkyl group having 8
to 20 carbon atoms, such as a caproic acid salt, a caprylic acid
salt, a capric acid salt a lauric acid salt, a myristic acid salt,
a palmitic acid salt, a stearic acid salt, and an oleic acid
salt.
[0054] Examples of the alkyl ether carboxylic acid salt include a
(poly)oxyethylene alkyl ether acetic acid salt, a (poly)oxyethylene
alkyl ether propionic acid salt, and the like. Specifically, an
alkyl ether carboxylic acid salt containing an alkylene group
having 14 to 60 carbon atoms, such as an oxyethylene oleyl ether
acetic acid salt, a polyoxyethylene lauryl ether acetic acid salt,
a polyoxyethylene stearyl ether acetic acid salt, a polyoxyethylene
hexylphenyl ether acetic acid salt, a polyoxyethylene tridecyl
ether acetic acid salt, a polyoxyethylene lauryl ether propionic
acid salt, and an alkyl glycol acetic acid salt can be used.
[0055] Examples of the alkenyl succinic acid salt include an
alkenyl succinic acid salt (monosalts or disalts) containing an
alkenyl group having 8 to 22 carbon atoms.
[0056] Examples of the N-acyl amino acid salt include an N-acyl
glutamic acid salt, an N-acyl aspartic acid salt, an
N-acyl-.beta.-alanine salt, an N-acyl methyl alanine salt, an
N-acyl glycine salt, an N-acyl proline salt, an N-acyl sarcosine
salt, and the like. Specifically, arginine
N-lauroyl-.beta.-alaninate, potassium N-lauroyl-.beta.-alaninate,
triethanolamine N-lauroyl-.beta.-alaninate, sodium
N-lauroyl-N-carboxymethyl-.beta.-alaninate, sodium N-lauroyl
glutamate, disodium N-stearoyl-L-glutamate, sodium N-lauroyl
sarcosinate, and the like can be used
[0057] Examples of the amide ether carboxylic acid salt include a
fatty acid alkanol amide ether carboxylic acid salt, a
polyoxyalkylene-modified alkylamide ether carboxylic acid salt, and
the like.
[0058] Examples of the sulfonic acid-based anionic surfactant
include an alkanesulfonic acid salt, an .alpha.-olefin sulfonic
acid salt, an alkylbenzenesulfonic acid salt, an
alkylnaphthalenesulfonic acid salt, an alkyldiphenyl ether
disulfonic acid salt, an alkylglycidyl ether sulfonic acid salt, a
lignin sulfonic acid salt, an .alpha.-sulfo fatty acid ester salt,
an acyl isethionic acid salt, an alkyl sulfo succinic acid salt, an
alkyl sulfo acetic acid salt, an N-acyl methyl taurine salt, a
formalin condensate-based sulfonic acid salt, a melamine sulfonic
acid salt, and the like.
[0059] Examples of the alkanesulfonic acid salt include an
alkanesulfonic acid salt having 8 to 18 carbon atoms, such as a
1-octanesulfonic acid salt, a 2-octanesulfonic acid salt, a
1-decanesulfonic acid salt, a 2-decanesulfonic acid salt, a
1-dodecanesulfonic acid salt, and a 2-dodecanesulfonic acid
salt.
[0060] Examples of the .alpha.-olefin sulfonic acid salt include an
.alpha.-olefin sulfonic acid salt having 8 to 18 carbon atoms, such
as tetradecene sulfonic acid salts.
[0061] Examples of the alkylbenzenesulfonic acid salt include a
p-toluenesulfonic acid salt, a dodecylbenzenesulfonic acid salt,
and the like.
[0062] Examples of the alkylnaphthalenesulfonic acid salt include a
monoalkylnaphthalenesulfonic acid salt, a
dialkylnaphthalenesulfonic acid salt, and the like. Specifically, a
methylnaphthalenesulfonic acid salt, an ethylnaphthalenesulfonic
acid salt, a propylnaphthalenesulfonic acid salt, an
isopropylnaphthalenesulfonic acid salt, a butylnaphthalenesulfonic
acid salt, an isobutylnaphthalenesulfonic acid salt, a
dimethylnaphthalenesulfonic acid salt, a diethylnaphthalenesulfonic
acid salt, a diisopropylnaphthaknesulfonic acid salt, a
dibutylnaphthalenesulfonic acid salt, a
dilsobutylnaphthalenesulfonic acid salt, a
methylnonylnaphthalenesulfonic acid salt, and the like can be
used.
[0063] Examples of the alkyl diphenyl ether disulfonic acid salt
include an alkyl diphenyl ether disulfonic acid salt containing an
alkyl group having 1 to 20 carbon atoms. Specifically, a nonyl
diphenyl ether disulfonic acid salt, a dodecyl diphenyl ether
disulfonic acid salt, a stearyl diphenyl ether disulfonic acid
salt, and the like can be used.
[0064] Examples of the .alpha.-sulfo fatty acid ester salt include
an .alpha.-sulfo fatty acid alkyl ester salt whose fatty acid
residue has 8 to 18 carbon atoms. Specifically, a methyl 2-sulfo
laurate salt, a polyoxyethylene fatty acid methyl ester, and the
like can be used.
[0065] Examples of the acyl isethionic acid salt include a lauroyl
isethionic acid salt, a coconut oil fatty acid ethyl ester sulfonic
acid salt, and the like.
[0066] Examples of the alkyl sulfo succinic acid salt include: an
alkyl sulfo succinic acid salt containing an alkyl group having 8
to 18 carbon atoms, such as a dioctyl sulfo succinic acid salt, a
di-2-ethylhexyl sulfo succinic acid salt, and a lauryl sulfo
succinic acid salt: a polyoxyethylene alkyl sulfo succinic acid
salt having 8 to 18 carbon atoms, such as a polyoxyethylene lauryl
sulfo succinic acid salt; and the like.
[0067] Examples of the alkyl sulfo acetic acid salt include an
alkyl sulfo acetic acid salt containing an alkyl group having 8 to
18 carbon atoms, such as lauryl sulfo acetic acid salts.
[0068] Examples of the N-acyl methyl taurine salt include a lauroyl
methyl taurine salt, a myristoyl methyl taurine salt, a palmitoyl
methyl taurine salt, a stearoyl methyl taurine salt, a coconut oil
fatty acid methyl taurine salt, and the like.
[0069] Examples of the formalin condensate-based sulfonic acid salt
include a formalin condensate of naphthalene sulfonic acid salt, a
formalin condensate of alkyl naphthalene sulfonic acid salt, a
formalin condensate of melamine sulfonic acid, a formalin
condensate of alkyl melamine sulfonic acid, and the like.
[0070] Examples of the sulfuric acid-based anionic surfactant
include an alkyl sulfuric acid salt, an alkyl ether sulfuric acid
salt, an alkyl aryl ether sulfuric acid salt, a fatty acid
alkanolamide sulfuric acid salt, a fatty acid monoglyceride
sulfuric acid salt, and the like.
[0071] Examples of the alkyl sulfuric acid salt include a lauryl
sulfuric acid salt, a stearyl sulfuric acid salt, a cetyl sulfuric
acid salt, and the like.
[0072] Examples of the alkyl ether sulfuric acid salt include a POE
lauryl ether sulfuric acid salt, a POE tridecyl ether sulfuric acid
salt, and the like.
[0073] Examples of the alkyl aryl ether sulfuric acid salt include
polyoxyethylene nonylphenyl ether sulfuric acid salts, and the
like.
[0074] Examples of the fatty acid alkanolamide sulfuric acid salt
include polyoxyethylene alkyl coconut oil fatty acid
monoethanolamide sulfuric acid salts, and the like.
[0075] Examples of the fatty acid monoglyceride sulfuric acid salt
include hydrogenated coconut oil fatty acid glyceryl sulfuric acid
salts, and the like.
[0076] Examples of the phosphoric acid-based anionic surfactant
include an alkyl phosphoric acid salt, a polyoxyalkylene alkyl
ether phosphoric acid salt an alkyl aryl ether phosphoric acid
salt, a fatty acid amide ether phosphoric acid salt, a glycerin
fatty acid ester monophosphoric acid salt and the like.
[0077] Examples of the alklyl phosphoric acid salt include a lauryl
phosphoric acid salt, a myristyl phosphoric acid salt, a palmityl
phosphoric acid salt, a stearyl phosphoric acid salt, and the
like.
[0078] Examples of the polyoxyalkylene alkyl ether phosphoric acid
salt include a polyoxyethylene lauryl ether phosphoric acid salt, a
polyoxyethylene alkyl (C12-15) ether phosphoric acid salt a
polyoxyethylene cetyl ether phosphoric acid salt, a polyoxyethylene
oleyl ether phosphoric acid salt, a polyoxyethylene stearyl ether
phosphoric acid salt, and the like.
[0079] Examples of the alkyl aryl ether phosphoric acid salt
include polyoxyethylene nonylphenyl ether phosphoric acid salts,
and the like.
[0080] Examples of the fatty acid amide ether phosphoric acid salt
include polyoxyethylene alkyl monoethanolamide phosphoric acid
salts, and the like.
[0081] Examples of the nonionic surfactant include: a
polyoxyalkylene alkyl ether that is an alkylene oxide adduct of an
aliphatic alcohol; a polyoxyalkylene phenyl ether or a
polyoxyalkylene alkylphenyl ether (polyoxyalkylene aryl ether) that
is an alkylene oxide adduct of an aromatic alcohol; a glycerin
fatty acid ester; a polyoxyalkylene glycerin fatty acid ester that
is an alkylene oxide adduct of a glycerin fatty acid ester; a
polyoxyalkylene pentaerythritol fatty acid ester that is an
alkylene oxide adduct of a pentaerythritol fatty acid ester; a
polyoxyalkylene fatty acid ester that is an alkylene oxide adduct
of a fatty acid; a sorbitan fatty acid ester; a polyoxyallcylene
sorbitan fatty acid ester that is an alkylene oxide adduct of a
sorbitan fatty acid ester; a sorbitan fatty acid ester; a sucrose
fatty acid ester: a pentaerydnitol fatty acid ester; a
polyoxyalkylene alkyl amine that is an alkylene oxide adduct of an
aliphatic amine; a polyoxyalkylene fatty acid amide that is an
alkylene oxide adduct of a fatty acid amide; polyoxyalkylene
(hydrogenated) castor oil, a polyoxyalkylene-modified
diorganopolysiloxane; a polyglyceryl-modified silicone: a
glyceryl-modified silicone; a sugar-modified silicone; a
perfluoropolyether-based surfactant; a
polyoxyethylene-polyoxypropylene block copolymer; an
alkylpolyoxyethylene-polyoxypropylene block copolymer ether; and
the like. The nonionic surfactant contained in the dispersant may
be only one type, or two or more types.
[0082] Examples of the polyoxyalkylene alkyl ether include a
polyoxyethylene alkyl ether, a polyoxypropylene alkyl ether, a
polyoxyethylene polyoxypropylene alkyl ether, and the like.
[0083] Examples of the polyoxyalkylene aryl ether include
polyoxyethylene phenyl ether, polyoxyethylene distyryl phenyl
ether, polyoxyethylene tristryl phenyl ether, polyoxyethylene
polyoxypropylene distyryl phenyl ether, polyoxyethylene
polyoxypropylene tristryl phenyl ether, and the like.
[0084] Examples of the (poly)glycerin fatty acid ester include a
(poly)glycerin monofatty acid ester, a (poly)glycerin difatty acid
ester, a (poly)glycerin tiffany acid ester, and the like. Examples
of the (poly)glycerin monofatty acid ester include glycerin
monocaprylate, glycerin monostearate, glycerin monobehenate, and
the like. Examples of the (poly)glycerin difatty acid ester include
glycerin distearate, glycerin dibehenate, and the like. Examples of
the (poly)glycerin trifatty acid ester include glycerin
tristearate, glycerin tribehenate, and the like.
[0085] Examples of the polyoxyalkylene glycerin fatty acid ester
include polyoxyethylene glycerin monostearate, polyoxyethylene
glycerin monooleate, and the like.
[0086] Examples of the polyoxyalkylene fatty acid ester include a
polyoxyethylene fatty acid ester, a polyoxypropylene fatty acid
ester, and the like. Examples of the polyoxyethylene fatty acid
ester include polyoxyethylene monostearic acid ester,
polyoxyethylene distearic acid ester, polyoxyethylene monooleic
acid ester, polyoxyethylene dioleic acid ester, and the like.
[0087] Examples of the sorbitan fatty acid ester include a sorbitan
monofatty acid ester, a sorbitan sesquifatty acid ester, a sorbitan
difatty acid ester, a sorbitan trifatty acid ester, a sorbitan
tetrafatty acid ester, and the like. Examples of the sorbitan
monofatty acid ester include sorbitan monopalmitate, sorbitan
monostearate, sorbitan monoisostearate, sorbitan monooleate,
sorbitan monobehenate, and the like. Examples of the sorbitan
difatty acid ester include sorbitan dipalmitate, sorbitan
distearate, sorbitan dibehenate, and the like. Examples of the
sorbitan trifatty acid ester include sorbitan tripalmitate,
sorbitan tristearate, sorbitan tribehenate, and the like.
[0088] Examples of the polyoxyalkylene sorbitan fatty acid ester
include polyoxyethylene sorbitan monostearate, polyoxyethylene
sorbitan monooleate, and the like.
[0089] Examples of the polyoxyalkylene alkyl amine include a
polyoxyethylene alkyl amine, a polyoxypropylene alkyl amine, and
the like.
[0090] Examples of the polyoxyalkylene fatty acid amide include
polyoxyethylene lauric acid monoethanolamide polyoxyethylene lauric
acid monoethanolamide, polyoxyethylene lauric acid
monoethanolamide, polyoxyethylene lauric acid monoethanolamide,
polyoxyethylene coconut oil fatty acid monoethanolamide,
polyoxyethylene coconut oil fatty acid monoethanolamide,
polyoxyethylene coconut oil fatty acid monoethanolamide,
polyoxyethylene coconut oil fatty acid monoethanolamide,
polyoxypropylene myrystic acid monoethanolamide, and the like.
[0091] From a viewpoint of the stability of the
deodorant-containing processing liquid, a content of the dispersant
contained in the deodorant-containing processing liquid according
to the embodiment of the present invention is preferably in a range
from 0.1 to 60 parts by mass, more preferably from 0.3 to 50 parts
by mass, and further preferably from 0.5 to 40 parts by mass based
on 100 parts by mass of the inorganic carrier.
[0092] The deodorant-containing processing liquid according to the
embodiment of the present invention is a dispersion liquid in which
a part or all of the above-described components are dispersed in
the dispersion medium. A content of the dispersion medium is not
particularly limited and is adjusted so that a content of the acid
salt of aminoguanidine is preferably in a range from 0.15 to 30
parts by mass, and more preferably from 1 to 20 part by mass based
on an amount of the deodorant-containing processing liquid.
[0093] As described above, the deodorant-containing processing
liquid according to the embodiment of the present invention may
contain other components such as other deodorant that chemically
adsorbs aldehyde-based gases or other odorous gases (e.g.,
sulfur-based gases such as hydrogen sulfide and methyl mercaptan;
and organic acid gases such as acetic acid, isovaleric acid, and
butyric acid) and an additive. Hereinafter, the other components
will be described.
[0094] Examples of the deodorant that adsorbs aldehyde-based gases
include a hydrazide, an azole having an amino group, and the
like.
[0095] A structure of the hydrazide is not particularly limited.
The hydrazide may be any one of a monohydrazide having one
hydrazide group in molecule, a dihydrazide having two hydrazide
groups in molecule, and a polyhydrazide having three or more
hydrazide groups in molecule.
[0096] Examples of the monohydrazide include a compound represented
by the following general formula (3):
R.sup.1--CO--NHNH.sub.2 (3)
[0097] (In the formula, R.sup.1 is a substituted or unsubstituted
hydrocarbon group having 3 or more carbon atoms).
[0098] Examples of the monohydrazide include propanoic acid
hydrazide, butanoic acid hydrazide, pentanoic acid hydrazide,
hexanoic acid hydrazide, heptanoic acid hydrazide, octanoic acid
hydrazide, nonanoic acid hydrazide, decanoic acid hydrazide,
dodecanoic acid hydrazide, pentadecanoic acid hydrazide, 4-methyl
benzoic acid hydrazide, phthalic acid monohydrazide, isophthalic
acid monohydrazide, terephthalic acid monohydrazide, naphthoic acid
hydrazide, salicylic acid hydrazide, p-hydroxybenzoic acid
hydrazide, 3-hydroxy-2-naphthoic acid hydrazide,
6-hydroxy-2-naphthoic acid hydrazide, and the like.
[0099] Examples of the dihydrazide include a compound represented
by the following general formula (4):
H.sub.2NHN--X--NHNH.sub.2 (4)
[0100] (In the formula, X is a --CO-- group or a
--CO--R.sup.2--CO-- group and R.sup.2 is a substituted or
unsubstituted alkylene group and cycloalkylene group having 3 or
more carbon atoms, or arylene group).
[0101] Examples of the alkylene group represented by R.sup.2 in the
above general formula (4) include a trimethylene group, a butylene
group, a pentylene group, a hexylene group, a heptylene group, an
octylene group, a nonylene group, a decamethylene group, an
undecamethylene group, and the like. Examples of the cycloalkylene
group include a cyclobutylene group, a cyclopentylene group, a
cyclohexylene group, a cycloheptylene group, a cyclooctylene group,
and the like. Examples of the arylene group include a phenylene
group, a biphenylene group, a naphthylene group, an anthrylene
group, a pentacenylene group, a perylenylene group, a picenylene
group, a pyrenylene group, a fluorenylene group, a chrysenylene
group, a phenanthrylene group, and the like.
[0102] Examples of the dihydrazide include succinic acid
dihydrazide, glutaric acid dihydrazide, adipic acid dihydrazide,
azelaic acid dihydrazide, sebacic acid dihydrazide,
1,12-dodecanedicarbohydrazide, 1,18-octadecanedicarbohydrazide,
maleic acid dihydrazide, fumaric acid dihydrazide, diglycol acid
dihydrazide, tartaric acid dihydrazide, malic acid dihydarzide,
dimer acid dihydrazide, phthalic acid dihydrazide, isophthalic acid
dihydrazide, terephthalic acid dihydrazide, 2-methyl terephthalic
acid dihydrazide, 5-tert-butylisophthalic acid dihydrazide,
1,4-naphthalenedicarbohydrazide, 2,6-napthalenedicarbohydrazide
(2,6-naphthoic acid dihydrazide), 4,4'-bisbenzenedihydrazide,
5-hydroxyisophthalic acid dihydrazide, 2-ethoxyterephthalic acid
dihydrazide, 3-methoxyphthalic acid dihydrazide,
5-butoxyisophthalic acid dihydrazide, 2- phenoxyterephthalic acid
dihydrazide, 4,6-dimetthoxyisphthalic acid dihydrazide,
2,3-bis(benzyloxy)terephthalic acid dihydrazide,
4,4'-oxybis(phthalic acid dihydrazide), hydroquinone diglycol acid
dihydrazide, resorcinol diglycol acid dihydrazide, catechol
diglycol acid dihydrazide, 4,4'-ethylidene bisphenol-diglycol acid
dihydrazide, 4,4'-vinylidene bisphenol-diglycol acid dihydrazide,
3-aminophthalic acid dihydrazide, 3-nitrophthalic acid dihydrazide,
5-(dibenzylamino)isophtahlic acid dihydrazide, and the like.
[0103] Examples of the polyhydrazide include a compound represented
by the following general formula (5):
R.sup.3--(CO--NHNH.sub.2).sub.n (5)
[0104] (In the formula, R.sup.3 is a substituted or unsubstituted
n-valent hydrocarbon group, and n is an integer of 3 or more).
[0105] Examples of the polyhydrazide include a trihydrazide such as
1,2,4-benzenetricarbohydrazide and pyromellitic acid ttihydrazide;
a tetrahydrazide such as pyromellitic acid tetrahydrazide,
1,4,5,8-naphthalenetetracarbohydrazide and
5,5'-ethylenebisoxybis(isophthalic acid dihydrazide), and the
like.
[0106] Examples of the azole having an amino group include
3-aminopyrazole, 5-amino-3-methylpyrazole, 3-amino-1,2A-triazole,
4-amino-1,2,4-triazole, 3,5-diamino-1,2,4-triazole,
5-amino-3-mercapto-1,2,4-triazole, 3-amino-5-phenyl-1,2,4-triazole,
and the like.
[0107] Examples of the deodorant that adsorbs sulfur-based gases
include metallic copper, a compound containing a copper element
(e.g., copper oxide, copper silicate), metallic zinc, a compound
containing a zinc element (e.g., zinc oxide, zinc silicate), a
compound containing a manganese element, and the like.
[0108] Examples of the deodorant that adsorbs organic acid gases
include hydrous zirconium oxide, and the like.
[0109] An average particle diameter of each of the above-described
other deodorants is preferably in a range from 0.01 to 50 .mu.m,
and more preferably from 0.02 to 20 .mu.m from a viewpoint of
handleability, adsorption performance, etc.
[0110] When the deodorant-containing processing liquid according to
the embodiment of the present invention contains other deodorant,
an upper limit of a content of the other deodorant is preferably
5,000 parts by mass, and more preferably 3,000 parts by mass based
on 100 parts by mass of the acid salt of aminoguanidine.
[0111] Examples of the additive include a water-soluble or
hydrophilic organic solvent, a viscosity adjuster, aur antifoaming
agent, a colorant, an air freshener, an antimicrobial agent, an
antivirus agent, an anti-allergen agent, an antiseptic agent, and
the like.
[0112] Examples of the organic solvent include methanol, ethanol,
dimethyl foimamide, dimethyl acetamide, dimethyl sulfoxide,
tetrahydmfuran, acetone, and the like.
[0113] The pH of the deodorant-containing processing liquid
according to the embodiment of the present invention is preferably
in a range from 1 to 7, and more preferably from 1.5 to 6, from a
viewpoint of stability.
[0114] The deodorant-containing processing liquid according to the
embodiment of the present invention has excellent stability in
spite of containing a deodorant at high concentration. A viscosity
(25.degree. C., 6 rpm) of the deodorant-containing processing
liquid according to the embodiment of the present invention as
measured with a B-type viscometer is preferably in a range from 50
to 1,000 cps, and more preferably from 100 to 800 cps. When having
a viscosity within the above range, the deodorant-containing
processing liquid according to the embodiment of the present
invention is easy to handle and has excellent applicability onto a
base. Therefore, it is possible to efficiently produce a
deodorizing product for aldehyde-based gases whose impregnation
amount of a deodorant is high.
[0115] A preparation method of the deodorant-containing processing
liquid according to the embodiment of the present invention is not
particularly limited. Preferable preparation methods are as
follows:
[0116] (1) a method in which the components are mixed at a time or
in several batches;
[0117] (2) a method in which a complex obtained by allowing the
inorganic carrier to carry the acid salt of aminoguanidine, a
dispersant containing liquid (aqueous solution or dispersion
liquid) containing the dispersant including the above-described
surfactant and water, the adhesive resin, and if necessary, water
are mixed at a time or in several batches:
[0118] (3) a method in which a complex obtained by allowing the
inorganic carrier to carry the acid salt of aminoguanidine, the
dispersant including the above-described surfactant, a resin
dispersion liquid or aqueous solution containing the adhesive resin
and water, and if necessary, water are mixed at a time or in
several batches;
[0119] (4) a method in which a complex obtained by allowing the
inorganic carrier to carry the acid salt of aminoguanidine, a
dispersant containing liquid (aqueous solution or dispersion
liquid) containing the dispersant including the above-described
surfactant and water, a resin dispersion liquid or aqueous solution
containing the adhesive resin and water, and if necessary, water
are mixed at a time or in several batches; and
[0120] (5) a method in which a complex obtained by allowing the
inorganic carrier to carry the acid salt of aminoguanidine, a resin
emulsion (resin dispersion liquid) produced in the presence of the
above-described surfactant, and if necessary, the above-described
surfactant and/or water are mixed at a time or in several
batches.
[0121] Among these, methods (2) and (4) are preferable.
[0122] As described above, the deodorant-containing processing
liquid according to the embodiment of the present invention is
suitable as a raw material for producing a deodorizing product by
impregnating a base with a deodorant. A method for producing the
deodorizing product is not particularly limited and is usually
selected depending on the shape etc. of the base.
[0123] The production method of a deodorizing product according to
the embodiment of the present invention includes a step for
applying the above-described deodorant-containing processing liquid
according to the embodiment of the present invention onto a base to
form a coating film on a surface of the base (hereinafter, refereed
to as "coating step") and a step for drying the coating film
(hereinafter, referred to as "drying step").
[0124] In the coating step, a coating film is formed on the surface
of the base by, for example, padding, dipping, coating, spraying.
or printing depending on the shape etc. of the base. The coating
film may be a film obtained by infiltrating the
deodorant-containing processing liquid into the base so that a
continuous phase is famed in the surface layer and inside of the
base.
[0125] The base is not particularly limited. The base may be an
article containing an inorganic material, an organic material, or a
material obtained by combining them. A shape of the base is not
particularly limited. Examples of the base that can be used
include: resin molded articles (including foamed resin molded
articles) such as films, particles, and general molded articles;
fibers; and fiber products containing fibers, such as nonwoven
fabrics and woven fabrics.
[0126] In the drying step, a medium including water is removed from
the coating film by dosed heating, warm air heating, or the like
depending on the shape etc. of the base to fonn a
deodorant-containing part (deodorant coating).
[0127] A drying temperature is preferably in a range from
60.degree. C. to 150.degree. C., and more preferably from
80.degree. C. to 130.degree. C., and a drying time is preferably in
a range from 2 minutes to 12 hours, and more preferably from 5
minutes to 2 hours.
[0128] As described above, in the embodiment of the present
invention the deodorant-containing processing liquid is used which
is stable and has a high content of the acid salt of aminoguanidine
with respect to the content of the inorganic carrier. Therefore, it
is not necessary to repeatedly perform the coating step and the
drying step to produce a deodorizing product having a desired
deodorant content, that is, it is possible to efficiently produce a
desired deodorizing product.
[0129] A deodorizing product obtained by the present invention will
be exemplified later.
[0130] A deodorizing filter medium according to the embodiment of
the present invention is an article including a sheet-shaped base
containing fiber and a deodorant-containing part joined to a
surface of the fiber, and having an air permeable from one surface
side to other surface side. The deodorant-containing part contains
an acid salt of aminoguanidine, an inorganic carrier canying the
acid salt of aminoguanidine, an adhesive resin, and a surfactant, a
content of the acid salt of aminoguanidine is 15 parts or more by
mass based on 100 parts by mass of the content of the inorganic
carrier, and the surfactant is at least one selected from an
anionic surfactant and a nonionic surfactant.
[0131] FIG. 1 shows, as a preferred mode of the deodorizing filter
medium according to the embodiment of the present invention, a
deodorizing filter medium 10 in which fiber 11 and a complex 13
obtained by allowing an inorganic carrier to carry an acid salt of
aminoguanidine are joined via an adhesive part 15 containing an
adhesive resin and a surfactant. In FIG. 1, the complex 13 and the
adhesive part 15 fonn the deodorant-containing part according to
the embodiment of the present invention. A structure of the
deodorizing filter medium according to the embodiment of the
present invention is not limited to one shown in FIG. 1. For
example, the deodorizing fitter medium may have a structure (not
shown) in which the complex 13 is localized in the center to form a
deodorant layer or a structure (not shown) in which the complex 13
is localized on its one surface side to form a deodorant layer.
[0132] The base is a sheet-shaped article that contains fiber and
has an air permeable from one surface side to other surface side,
and may be formed of either a woven fabric or a nonwoven fabric.
However, the base is preferably formed of a nonwoven fabric because
a desired thickness can easily be set and the ability to allow air
to pass therethrough can easily be controlled.
[0133] The fiber is preferably mainly made of a resin, and examples
of the resin include a polyester, a polyethylene, a polypropylene,
a polyvinyl chloride, a polyacrylic acid, a polyamide, a polyvinyl
alcohol, a polyurethane, a polyvinyl ester, a polymethacrylate, a
rayon, and the like. Among these, a polyester, a polyethylene, a
polypropylene, a polyamide, a polyvinyl alcohol, and a polyurethane
are preferable. The nonwoven fabric may be one formed of fibers
containing only one kind of resin or one formed of two or more
kinds of resin fibers. The nonwoven fabric may be one in which
fibers are interlaced
[0134] The deodorant-containing part according to the embodiment of
the present invention contains a complex obtained by allowing an
inorganic carrier to carry an acid salt of aminoguanidine, an
adhesive resin, and a surfactant. Preferred materials for the acid
salt of aminoguanidine, the inorganic carrier, the adhesive resin,
and the surfactant are as described above with reference to the
deodorant-containing processing liquid according to the embodiment
of the present invention.
[0135] A content of the acid salt of aminoguanidine at the
deodorant-containing part is 15 parts by mass or more, preferably
in a range from 15 to 200 parts by mass, more preferably from 20 to
150 parts by mass, and further preferably from 25 to 100 parts by
mass, based on 100 parts by mass of the content of the inorganic
carrier from a viewpoint of deodorizing odorous gases including
aldehyde-based gases.
[0136] A content ratio of the acid salt of aminoguanidine is
preferably in a range from 1% to 50% by mass, more preferably from
3% to 40%, and further preferably from 5% to 30% by mass, based on
an amount of the base from a viewpoint of deodorizing odorous gases
including aldehyde-based gases.
[0137] A content of the adhesive resin at the deodorant-containing
part is preferably in a range from 10 to 300 parts by mass, more
preferably from 15 to 200 parts by mass, and further preferably
from 20 to 150 parts by mass, based on 100 parts by mass of a total
amount of the acid salt of aminoguanidine and the inorganic carrier
from a viewpoint of adhesiveness between the complex obtained by
allowing the inorganic carrier to carry the acid salt of
aminoguanidine and the fiber.
[0138] A content of the surfactant at the deodorant-containing part
is preferably in a range from 0.1 to 60 parts by mass, more
preferably from 0.3 to 50 parts by mass, and further preferably
from 0.5 to 40 parts by mass, based on 100 parts by mass of the
inorganic carrier.
[0139] A weight per unit area of the deodorizing filter medium
according to this embodiment of the present invention is preferably
in a range from 25 to 200 g/m.sup.2, and more preferably from 40 to
150 g/m.sup.2, from viewpoints of a sufficient deodorizing effect
on aldehyde-based gases and ability to allow air to pass
therethrough.
[0140] The air permeability of the deodorizing filter medium
according to the embodiment of the present invention is preferably
in a range from 10 to 500 cm.sup.3/(cm.sup.2s), and more preferably
from 50 to 300 cm.sup.3/(cm.sup.2 s), from a viewpoint of a
sufficient deodorizing effect on aldehyde-based gases. It is to be
noted that the air permeability is determined by a method based on
JIS L1096.
[0141] A production method of the deodorizing filter medium
according to the embodiment of the present invention is not
particularly limited. Applicable methods are as follows:
[0142] (1) a method in which the above-described
deodorant-containing processing liquid according to the embodiment
of the present invention is applied (by, for example, dipping,
spraying, or padding) onto a base formed of a woven or unwoven
fabric containing fibers and then dried so that a complex obtained
by allowing the inorganic carrier to carry the acid salt of
aminoguanidine is adhered to the surface of the fibers contained in
the woven or nonwoven fabric; and
[0143] (2) a method in which a liquid containing an adhesive resin,
a surfactant, and a medium is applied (by, for example, dipping,
spraying, or padding) onto a base formed of a woven or nonwoven
fabric containing fibers, a complex obtained by allowing an
inorganic carrier to cavy an acid salt of aminoguanidine is then
sprayed onto the base, and the medium is remover so that the
complex obtained by allowing an inorganic carrier to cany an acid
salt of aminoguanidine is adhered to the surface of the fibers
contained in the woven or nonwoven fabric.
[0144] A deodorizing filter unit according to the embodiment of the
present invention includes the above-described deodorizing filter
medium according to the embodiment of the present invention and a
canying member that caries the deodorizing filter medium. That is,
the deodorizing filter unit according to the embodiment of the
present invention is a composite product including the deodorizing
filter medium and the carrying member.
[0145] A shape and constituent material of the carrying member are
not particularly limited and can appropriately be selected
depending on the intended use.
[0146] A shape of the deodorizing filter medium is also not
particularly limited and can also be appropriately selected
depending on the intended use. For example, the deodorizing filter
medium may be pleated to have a zigzag shape, or the two or more
deodorizing filter media may three-dimensionally be layered to have
a multi-layer structure.
[0147] Examples of the structure of the deodorizing filter unit
according to the embodiment of the present invention are as
follows:
[0148] (1) a structure in which the deodorizing filter medium is
fitted in the carrying member having a frame shape;
[0149] (2) a structure in which the deodorizing filter medium is
joined to the carrying member; and
[0150] (3) a structure in which the carrying member having a ring
shape is provided between fibers at the periphery of the
deodorizing filter medium.
[0151] Depending on the purpose or intended use, the deodorizing
filter unit according to the embodiment of the present invention
may further include another member such as a dust collection filter
medium, a disinfectant filter medium, an anti-allergen filter
medium, and an anti-virus filter medium.
[0152] A deodorizing apparatus according to the embodiment of the
present invention includes the above-described deodorizing filter
medium according to the embodiment of the present invention, and
may include the above-described deodorizing filter unit according
to the embodiment of the present invention.
[0153] The deodorizing apparatus according to the embodiment of the
present invention preferably includes a main body, an odorous gas
inlet provided in the main body to introduce odorous gas from the
outside of the main body, a deodorizing filter medium provided
inside the main body, a gas outlet provided in the main body to
discharge gas cleaned by the deodorizing filter medium, and an
exhaust fan provided inside the main body to forcibly discharge the
cleaned gas through the gas outlet
EXAMPLES
[0154] Hereinafter, the present invention will be described in more
detail with reference to Examples, but is not limited to these
Examples. In the following, it is noted that "%" refers to % by
mass unless otherwise mentioned.
1. Raw Materials of Deodorant-Containing Processing Liquid
[0155] Raw materials used for producing deodorant-containing
processing liquids are as follows.
1-1. Deodorant Composition
[0156] A complex deodorant including a complex was obtained by the
above-described method using an aqueous solution of a hydrochloric
acid salt or sulfuric acid salt of aminoguanidine and aluminum
silicate (molar ratio SiO.sub.2:Al.sub.2O.sub.3=9:1) having a BET
specific surface area of 600 m.sup.2/g and an average particle
diameter of 10 .mu.m or silica gel having a BET specific surface
area of 700 m.sup.2/g and an average particle diameter of 5 .mu.m
as an inorganic c,anier, and was then, if necessary, mixed with
hydrous zirconium oxide or zinc oxide as other deodorant to prepare
deodorant compositions (A1) to (A11) shown in Table 1. After that,
these deodorant compositions (A1) to (A11) were used as raw
materials for producing deodorant-containing processing
liquids.
TABLE-US-00001 TABLE 1 Table 1 Deodorant composition A1 A2 A3 A4 A5
A6 A7 A8 A9 A10 A11 Hydrochloric acid salt (parts by mass) 6 5 3 4
5 4 3 of aminoguanidine Sulfuric acid salt (parts by mass) 6 4 3 4
of aminoguanidine Aluminum silicate (parts by mass) 6 10 12 12 6 12
12 Silica (parts by mass) 10 10 12 12 Hydrous zirconium oxide
(parts by mass) 2 Zinc oxide (parts by mass) 2 Content ratio (parts
by mass) of acid 100 50 25 33 50 40 25 100 33 25 33 salt of
aminoguanidine based on 100 parts by mass of inorganic carrier
1-2. Adhesives
[0157] Emulsions containing an adhesive resin were used.
(1) Emulsion (B1)
[0158] An ethylene-vinyl acetate copolymer emulsion was used. The
solid content concentration of the adhesive resin is 57%.
(2) Emulsion (B2)
[0159] An ethylene-vinyl chloride copolymer emulsion was used. The
solid content concentration of the adhesive resin is 50%.
(3) Emulsion (B3)
[0160] An acrylic resin emulsion was used The solid content
concentration of the adhesive resin is 40%.
(4) Emulsion (B4)
[0161] A urethane resin emulsion was used. The solid content
concentration of the adhesive resin is 30%.
(5) Emulsion (B5)
[0162] A chlorinated polyolefin emulsion was used. The solid
content concentration of the adhesive resin is 30%.
1-3. Dispersants
[0163] Dispersant containing liquids containing a surfactant were
used.
(1) Dispersant Containing Liquid (C1)
[0164] A water-soluble dispersant containing an anionic surfactant
(acid value: 1.5 mgKOH/g) was used. The pure content of the
surfactant is 40%.
(2) Dispersant Containing Liquid (C2)
[0165] A water-soluble dispersant containing an anionic surfactant
(acid value: 10 mgKOH/g) was used The pure content of the
surfactant is 40%.
(3) Dispersant Containing Liquid (C3)
[0166] A water-soluble dispersant containing a nonionic surfactant
was used. The pure content of the surfactant is 40%.
(4) Dispersant Containing Liquid (C4)
[0167] A water-soluble dispersant containing a nonionic surfactant
was used. The pure content of the surfactant is 60%.
(5) Dispersant Containing Liquid (C5)
[0168] A water-soluble dispersant mainly containing a cationic
surfactant (quatenary ammonium salt) was used. The pure content of
the surfactant is 63%.
(6) Dispersant Containing Liquid (C6)
[0169] A water-soluble dispersant containing an amphoteric
surfactant (acid value: 30 mgKOH/g, amine value: 20 mgKOH/g) was
used The pure content of the surfactant is 98%.
(7) Dispersant Containing Liquid (C7)
[0170] A water-soluble dispersant containing an amphoteric
surfactant (acid value: 94 mgKOH/g, amine value: 94 mgKOH/g) was
used. The pure content of the surfactant is 81%.
(8) Dispersant Containing Liquid (C8)
[0171] A water-soluble dispersant containing an amphoteric
surfactant (acid value: 8 mgKOH/g, amine value: 18 mgKOH/g) was
used. The pure content of the surfactant is more than 98.5%.
2. Production and Evaluation of Deodorant-Containing Processing
Liquids
[0172] The deodorant compositions shown in Table 1, emulsions,
dispersant containing liquids, and water were used to produce
deodorant-containing processing liquids, and various physical
properties were evaluated.
Example 1-1
[0173] 15 parts of the deodorant composition (A3), 9.1 parts of the
emulsion (B1), 1.5 parts of the dispersant containing liquid (C1),
and 74.4 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L1) (see Table 2). Then,
the pH of the deodorant-containing processing liquid at 25.degree.
C. was measured, and the viscosity of the deodorant-containing
processing liquid at 25.degree. C. was measured using a B-type
viscometer (manufactured by Told Sangyo Co., Ltd, Type BL, No. 3
rotor). These results are also shown in Table 2.
Example 1-2
[0174] 15 parts of the deodorant composition (A2), 10 parts of the
emulsion (B2), 2.5 parts of the dispersant containing liquid (C4),
and 72.5 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L2) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Example 1-3
[0175] 12 parts of the deodorant composition (A1), 15 parts of the
emulsion (B3), 2 parts of the dispersant containing liquid (C3),
and 71 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L3) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Example 1-4
[0176] 18 parts of the deodorant composition (A4), 8.2 parts of the
emulsion (B1), 1.5 parts of the dispersant containing liquid (C1),
and 72.3 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L4 ) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Example 1-5
[0177] 15 parts of the deodorant composition (A5), 16.7 parts of
the emulsion (B4), 2 parts of the dispersant containing liquid
(C1), and 66.3 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L5) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Example 1-6
[0178] 17 parts of the deodorant composition (A10), 21.3 parts of
the emulsion (B3), 2 parts of the dispersant containing liquid
(C3), and 59.7 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L6) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Example 1-7
[0179] 16 parts of the deodorant composition (A9), 10 parts of the
emulsion (B3),1.5 parts of the dispersant containing liquid (C2),
and 72.5 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L7) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Example 1-8
[0180] 16 parts of the deodorant composition (A11), 13.3 parts of
the emulsion (B5), 1.5 parts of the dispersant containing liquid
(C2), and 69.2 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L8) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Comparative Example 1-1
[0181] 15 parts of the deodorant composition (A3), 9.1 parts of the
emulsion (B1), and 75.9 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L9) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those hi Example 1-1 (see Table
2).
Comparative Example 1-2
[0182] 15 parts of the deodorant composition (A7), 18.8 parts of
the emulsion (B3),1 part of the dispersant containing liquid (C5),
and 65.2 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L10) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Comparative Example 1-3
[0183] 14 parts of the deodorant composition (A6), 6.4 parts of the
emulsion (B1), 1 part of the dispersant containing liquid (C7), and
78.6 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L11) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Comparative Example 1-4
[0184] 15 parts of the deodorant composition (A5), 16.7 parts of
the emulsion (B4), 2 parts of the dispersant containing liquid
(C8), and 66.3 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L12) (see Table 2). Then,
the pH of the deodorant-containing processing liquid was measured
in the same manner as those in Example 1-1 (see Table 2). The
viscosity could not be measured because the raw materials were
agglomerated.
Comparative Example 1-5
[0185] 16 parts of the deodorant composition (A9), 10 parts of the
emulsion (B3). 1.5 parts of the dispersant containing liquid (C6),
and 72.5 parts of pure water were mixed to produce a
deodorant-containing processing liquid (L13) (see Table 2). Then,
the pH and viscosity of the deodorant-containing processing liquid
were measured in the same manner as those in Example 1-1 (see Table
2).
Comparative Example 1-6
[0186] 12 parts of the deodorant composition (A8), 10 parts of the
emulsion (B5), 1 part of the dispersant containing liquid (C5), and
77 parts of pure water were mixed to produce a deodorant-containing
processing liquid (L14) (see Table 2). Then, the pH and viscosity
of the deodorant-containing processing liquid were measured in the
same manner as those in Example 1-1 (see Table 2).
TABLE-US-00002 TABLE 2 Table 2 Examples Comparative Examples 1-1
1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-1 1-2 1-3 1-4 1-5 1-6 Processing L1
L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 L12 L13 L14 liquids Deodorant A1 12
composition A2 15 (parts) A3 15 15 A4 18 A5 15 15 A6 14 A7 15 A8 12
A9 16 16 A10 17 A11 16 Emulsion B1 9.1 8.2 9.1 6.4 (parts) (5.2)
(4.7) (5.2) (3.6) B2 10 (5.0) B3 15 21.3 10 18.8 10 (6.0) (8.5)
(4.0) (7.5) (4.0) B4 16.7 16.7 (5.0) (5.0) B5 13.3 10 (4.0) (3.0)
Dispersant- C1 1.5 1.5 2 containing (0.6) (0.6) (0.8) liquid C2 1.5
1.5 (parts) (0.6) (0.6) C3 2 2 (0.8) (0.8) C4 2.5 (1.5) C5 1 1
(0.63) (0.63) C6 1.5 (1.47) C7 1 (0.81) C8 2 (>1.97) Water 74.4
72.5 71 72.3 66.3 59.7 72.5 69.2 75.9 65.2 78.6 66.3 72.5 77
(parts) Total 100 100 100 100 100 100 100 100 100 100 100 100 100
100 (parts) pH 4.3 4.0 3.8 4.2 4.0 4.1 4.1 4.3 4.3 4.4 4.2 3.9 4.1
4.1 Viscosity 6 rpm 500 600 400 600 400 600 400 300 1800 4000 2200
Aggregated 1600 3200 60 rpm 100 150 80 150 80 200 100 60 200 600
360 Aggregated 250 400 (Note) The values in brackets are solid
contents (parts).
[0187] As can be seen from Table 2, Comparative Example 1-1 is an
example that used no anionic or nonionic surfactant, and therefore
the obtained deodorant-containing processing liquid had too high a
viscosity. Comparative Examples 1-2 to 1-6 are examples that used,
as a dispersant, a cationic or amphoteric surfactant, and therefore
the obtained deodorant-containing processing liquid had too high a
viscosity or aggregation of the raw material component occurred. On
the other hand, such defect phenomena did not occur in Examples 1-1
to 1-8, and the obtained deodorant-containing processing liquids
had excellent stability.
3. Production and Evaluation of Deodorizing Products
[0188] Various deodorizing products were produced using the
deodorant-containing processing liquids shown in Table 2 and the
following base, and deodorizing performances of the deodorizing
products were evaluated.
(1) Nonwoven Fabric Sheet
[0189] A chemical-bond nonwoven fabric "TN60BT" manufactured by
Kurashild Textile Manufacturing Co., Ltd. was used. The air
permeability of the nonwoven fabfic measured in accordance with JIS
L1096 is 310 cm.sup.3/(cm.sup.2.quadrature.sec), and the weight per
unit area (basis weight) of the nonwoven fabric is 60
g/m.sup.2.
(2) Paper
[0190] "TANOSEE .alpha. Eco Paper Type TR" (trade name)
manufactured by OTSUKA CORPORATION was used. The basis weight of
the paper is 66 g/m.sup.2.
(3) Resin Film
[0191] An easy adhesive PET film "A4300" (trade name) manufactured
by TOYOBO CO., LTD. was used. The thickness of the film is 50
.mu.m
Example 2-1
(1) Production and Evaluation of Deodorizing Filter Medium
[0192] The above-described nonwoven fabric sheet was dipped in the
deodorant-containing processing liquid (L1) at 25.degree. C. (5
seconds). Then, the nonwoven fabric sheet was squeezed with a
mangle and then dried by heating (130.degree. C., 3 minutes) to
obtain a deodorizing filter medium.
[0193] The obtained filter medium 10 was subjected to an aeration
deodorant test (see FIG. 2) to evaluate deodorizing performance by
the following method. The deodorizing filter medium 10 was set
between a gas bag 20 containing air containing 200 vol ppm of
formaldehyde (hereinafter, referred to as a
"formaldehyde-containing gas) and a gas detector tube 30. Then, the
formaldehyde-containing gas was sucked by a gas collector 40 so as
to be passed through the deodorizing filter medium 10 by a suction
force, and the concentration of formaldehyde in the gas passed
through the deodorizing filter medium 10 was measured by the gas
detector tube 30. It is to be noted that the flow rate of the
formaldehyde-containing gas passing through the deodorizing filter
medium 10 can be adjusted by controlling the area of the
deodorizing filter medium 10 through which the
formaldehyde-containing gas passes.
[0194] The odor reduction rate (%) of the deodorizing filter medium
10 in the aeration deodorant test was calculated by the following
fomiula. The result is shown in Table 3.
Odor reduction rate=((formaldehyde concentration before passing
through deodorizing filter medium-formaldehyde concentration after
passing through deodorizing filter medium)/formaldehyde
concentration before passing through deodorizing filter
medium).times.100.
[0195] The obtained deodorizing filter medium was cut to prepare a
test specimen having a size of 10 cm.times.10 cm. Then, the test
specimen was placed in a bag (volume: 3 liters) formed of a PVDO
resin-coated PP resin film, and air containing 1500 vol ppm of
formaldehyde was filled in the bag. In such a state, the test
specimen was allowed to stand (25.degree. C., 24 hours), and then
the concentration of formaldehyde was measured to calculate a
deodorization rate (hereinafter, referred to as a "deodorization
rate after 24 hours"). The result is shown in Table 3.
(2) Production and Evaluation of Deodorizing Paper
[0196] The deodorant-containing processing liquid (L1) was applied
onto the surface of a sheet of the above-described paper by bar
coating (No. 32), and then the resulting coating film was dried by
heating (130.degree. C., 3 minutes) to obtain a deodorizing paper
sheet in which the deodorant composition was adhered to cellulose
fibers.
[0197] The deodorizing peifonnance (deodorization rate after 24
hours) of the obtained deodorizing paper sheet was evaluated in the
same manner as in the evaluation of the deodorizing filter medium.
The result is shown in Table 3.
(3) Production and Evaluation of Deodorizing Film
[0198] The deodorant-containing processing liquid (L1) was applied
onto the surface of the above-described resin film by bar coating
(No. 32), and then the resulting coating film was dried by heating
(130.degree. C., 3 minutes) to obtain a deodorizing fihu having a
coating with a thickness of about 10 .mu.m.
[0199] The deodorizing performance (deodorization rate after 24
hours) of the obtained deodorizing fihn was evaluated in the same
manner as in the evaluation of the deodorizing filter medium. The
result is shown in Table 3.
Examples 2-2
[0200] A deodorizing filter media, deodorizing paper sheet, and
deodorizing film were produced in the same manner as those in
Example 2-1 except that the deodorant-containing processing liquid
(L2) was used instead of the deodorant-containing processing liquid
(L1) (see Table 3).
Examples 2-3
[0201] A deodorizing filter media, deodorizing paper sheet, and
deodorizing film were produced in the same manner as those in
Example 2-1 except that the deodorant-containing processing liquid
(L3) was used instead of the deodorant-containing processing liquid
(L1) (see Table 3).
Examples 2-4
[0202] A deodorizing filter media, deodorizing paper sheet, and
deodorizing film were produced in the same manner as those in
Example 2-1 except that the deodorant-containing processing liquid
(L4) was used instead of the deodorant-containing processing liquid
(L1) (see Table 3).
Examples 2-5
[0203] A deodorizing filter media, deodorizing paper sheet, and
deodorizing film were produced in the same manner as those in
Example 2-1 except that the deodorant-containing processing liquid
(L5) was used instead of the deodorant-containing processing liquid
(L1) (see Table 3).
Examples 2-6
[0204] A deodorizing filter media, deodorizing paper sheet, and
deodorizing film were produced in the smile manner as those in
Example 2-1 except that the deodorant-containing processing liquid
(L6) was used instead of the deodorant-containing processing liquid
(L1) (see Table 3).
Examples 2-7
[0205] A deodorizing filter media, deodorizing paper sheet, and
deodorizing film were produced in the same manner as those in
Example 2-1 except that the deodorant-containing processing liquid
(L7) was used instead of the deodorant-containing processing liquid
(L1) (see Table 3).
Examples 2-8
[0206] A deodorizing filter media, deodorizing paper sheet, and
deodorizing film were produced in the same manner as those in
Example 2-1 except that the deodorant-containing processing liquid
(L8) was used instead of the deodorant-containing processing liquid
(L1) (see Table 3).
[0207] Production of various deodorizing products was tried using
the deodorant-containing processing liquid (L9), (L10), (L11),
(L12), (L13), or (L14) instead of the deodorant-containing
processing liquid (L1), however, these products was not be produced
due to too high a viscosity of processing liquid or aggregation of
the component contained (see Table 3).
TABLE-US-00003 TABLE 3 Table 3 Examples Comparative Examples 2-1
2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-1 2-2 2-3 2-4 2-5 2-6
Deodorant-containing processing liquids L1 L2 L3 L4 L5 L6 L7 L8 L9
L10 L11 L12 L13 L14 Deodorizing filter media Deodorizing products
was not Impregnation amount of acid salt of 3.0 2.8 3.8 3.2 3.8 2.8
3.3 3.3 be produced due to too high a aminoguanidine (g/m.sup.2)
viscosity or aggregation of the Odor reduction rate (%) in aeration
92 90 94 94 96 92 94 92 component contained. deodorant test
Deodorization rate (%) after 24 hours >99 >99 >99 >99
>99 >99 >99 >99 Deodorizing paper sheet Impregnation
amount of acid salt of 5.8 6.1 7.6 6.5 7.2 6.2 6.7 6.3
aminoguanidine (g/m.sup.2) Deodorization rate (%) after 24 hours
>99 >99 >99 >99 >99 >99 >99 >99 Deodorizing
film Impregnation amount of acid salt of 2.9 3.0 3.5 3.1 3.5 2.8
3.1 3.4 aminoguanidine (g/m.sup.2) Deodorization rate (%) after 24
hours >99 >99 >99 >99 >99 >99 >99 >99
[0208] The deodorizing products (deodorizing films, deodorizing
paper sheets, and deodorizing filter media) of Examples 2-1 to 2-8
were obtained using the stable deodorant-containing processing
liquids (L1) to (L8) obtained in Examples 1-1 to 1-8. The
deodorant-containing processing liquids (L1) to (L8) allowed the
base to evenly be impregnated with the complex deodorant in high
concentration, and the deodorizing products obtained in Examples
2-1 to 2-8 showed sufficiently high deodorizing performance.
[0209] According to the embodiment of the present invention, it is
possible to provide a deodorant-containing processing liquid that
prevents the generation of an aggregate and an increase in
viscosity thereof when the deodorant-containing processing liquid
contains a deodorant obtained by combining an acid salt of
aminoguanidine and an inorganic carrier capable of canying the acid
salt of aminoguanidine, and the mass ratio of the acid salt of
aminoguanidine to the inorganic carrier is high
[0210] Further, according to the embodiment of the present
invention, it is possible to provide a method for efficiently
producing a deodorizing product having high deodorizing performance
without repeatedly performing coating and drying.
[0211] Further, according to the embodiment of the present
invention, it is possible to provide a deodorizing filter medium
having excellent deodorizing performance against aldehyde-based
gases and a deodorizing filter runt and a deodorizing apparatus
which include such a deodorizing filter medium.
INDUSTRIAL APPLICABILITY
[0212] The deodorant-containing processing liquid according to the
present invention can easily be applied onto a fibrous base or the
like, and is suitable for producing various deodorizing products
(e.g., deodorizing filter media, deodorizing paper sheets,
deodorizing films) having excellent deodorizing performance against
aldehyde-based gases.
[0213] The deodorizing products obtained according to the present
invention can suitably be used at sites where materials or products
that generate aldehyde-based gases are used, such as building
materials (e.g., plywood laminated wood, floor boards, particle
boards, heat-insulating materials), floor carpets, sound-deadening
pads, cushioning materials, car seats, headrests, armrests, door
trims, molded headers, sun visors, rear package trays, instrument
panels, and dash insulators.
[0214] The deodorizing filter medium according to the present
invention instantaneously delivers high deodorizing performance
against aldehyde-based gases contained in odorous gas passing
therethrough, and therefore the deodorizing filter medium according
to the present invention and the deodorizing apparatus including
the deodorizing filter medium according to the present invention
are suitable for use in medical and care sites, toilets, sewage
plants, garbage disposal plants (incinerator plants), fertilizer
plants, and chemical plants.
REFERENCE SIGNS LIST
[0215] 10: Deodorizing filter media, 11: fiber, 13: deodorant
(complex), 15: joined part (adhered resin and dispersant), 20: gas
bag, 30: gas detector tube, 40: gas collector.
* * * * *